Even though I use it only 5 or 6 times, the sharpness became very bad. Toyo Associates (Mr. Mister)'s cemented carbide rotary bar / titanium coating is better cut and lasts longer. Sharpness does not change even if iron is processed. Https://www.monotaro.com/p/1899/2356/ I do not know from what time I made a minor change, but it will be said that it was a deteriorated item before the sharpness of only aluminum and brass. Toyo Associates (Mr. Meister) is about twice as much, but the cost is cheap for long-lasting. What is the quality of MonotaRO after minor change? Is it? I have only one review yet I just write "easy to use", so I do not think that I want to buy it. MonotaRO carbide rotary bar As far as cutting conditions are concerned, there are few mini router / hand routers that can be used even in processing of general steel. It finally is 50,000 rpm (50,000 rpm) with a hand grinder (pen type) of 780,000 yen or more. Since Proxon has a maximum of 20,000 revolutions and the shank diameter is Φ 3.0 mm, it means that a cylindrical carbide rotary bar can not be used. Also, if you look carefully, a carbide rotary bar with a blade diameter of 12.7 mm can not be used with a general mini router / hand router. Since other recommended manufacturer's cemented carbide rotary bar has recommended rotation number written in item description, you can grasp beforehand whether it corresponds to your own router. However, when selling this MonotaRO product, there was no thing like "MonotaRO carbide rotary bar cutting condition", so we had to judge by evaluation of the review. Please also titanium coated MonotaRO's carbide rotary bar.

Although it has passed a long time since purchase, there is no problem if it is aluminum or brass, but it was easier for other companies to shave off if I tried to scrap iron for the first time. The amount that can be scraped by one time is also a little bit, and the processing time will take many times. It seems that it still did not match to a certain manufacturer's item. Since the blade is not attached at the tip, the part that can not be cut vertically is the thing that I want to be cut at a stroke at the same time with the blade with the side scraping, but it did not cut off properly. Long neck · end mill for iron and stainless steel has shorter machining time. Iron scrapers float like dust when using other company's carbide rotary bars, but it is a feeling that scrapers scatter when they are carbide rotary bars of monotaro. I guess, I feel that the angle of the blade is bad. It is like feeling the workpiece gouged. If it is made by another company it is pretty like a mirror finish after scraping, but after using the monotarrow it is a streak of foliage. The conditions for comparing and contrasting are all the same. It is about a difference in length as compared with other companies' products, and others seems not to change very much, but it can not be used. It can only divide it for rough cutting of aluminum and brass. I'd like to give it a titanium coating. With price unchanged · · ·.

For correcting bolt holes due to distortion of the aircraft, a rotary bar was used. I used to fix it with a drilling machine before, but it was a bit of distortion so the drill escaped and it was difficult to correct, but it was made easy with this rotary bar. For the moment I used it as a test, but it does not seem to be problematic. Durability is judged from the future result.

Because hardware is an aluminum product, this product was chosen as a result of searching what is made of an alloy using teeth ultra-hard because the main body is scratched in products such as sandpaper.

Since it is a double cut, it certainly can be scraped into powder, but in some cases it may be scraped like a needle and I felt somewhat careful to touch with bare hands after cutting. I am satisfied with cutting performance.

I used this super steel rotary bar from before. I could not use it because I broke it. Until now I ordered to a tool shop, but I tried ordering to a monotaro this time. I have not used much yet, but I think that it is not different from the previous ones.